>>64374333
No, the better one would be AIP sub (the one that actually work like fuel cell) + SLBM.
> pic related
nuclear subs, due to cooling pumps will always be inherently less quiet than aip or diesel electric sub.
diesel electric has to surface once in a while to charge the batteries, while fuel cell, even the smaller sub-2000t boat can just stay underwater for a month. Dedicated large AIP can certainly strive for more